CRITICAL🚩 CISA KEV⚡ EXPLOIT🇵🇱 Wersja polska

CVE-2026-21962

CVSS 10.0v3.1pub. 2026-01-20upd. 2026-08-25

Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in. While the vulnerability is in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data. Note: Affected version for Weblogic Server Proxy Plug-in for IIS is 12.2.1.4.0 only. CVSS 3.1 Base Score 10.0 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N).

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🤖 AI Analysis

How it works

The vulnerability is classified as CWE-284 (Improper Access Control) and results from improper access control in WebLogic Server Proxy Plug-in components for Apache HTTP Server and IIS. An attacker with network access via HTTP can exploit the vulnerability without authentication and without user interaction. Exploitation causes a scope change, meaning the impact extends beyond the directly attacked component and may affect other related products.

Impact

An attacker can gain unauthorized full access to read critical data or all data available to Oracle HTTP Server and WebLogic Server Proxy Plug-in, as well as unauthorized creation, modification or deletion of critical data. The vulnerability affects both confidentiality and data integrity (both CVSS indicators at HIGH level).

Mitigation & patch

Apply patches available from the vendor according to references — Oracle Critical Patch Update from January 2026 (https://www.oracle.com/security-alerts/cpujan2026.html). Due to the maximum CVSS score and lack of prerequisites on the attacker's side, the update should be performed immediately.

Who is affected

Oracle HTTP Server and Oracle WebLogic Server Proxy Plug-in in versions 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Note: for WebLogic Server Proxy Plug-in for IIS, the vulnerability affects only version 12.2.1.4.0.

Analysis generated by Claude AI (Anthropic) based on NVD data. Always verify with vendor.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Oracle HTTP Server
APP
Oracle
12.2.1.4.014.1.1.0.014.1.2.0.0
Oracle Weblogic Server Proxy Plug In
APP
Oracle
12.2.1.4.014.1.1.0.014.1.2.0.0

CISA KEV — detailsi

Vendori: Oracle ↗
Producti: HTTP Server and Oracle Weblogic Server Proxy Plug-in
Added to KEVi: August 24, 2026
Remediation deadline (US Federal)i: August 27, 2026(overdue)

🔧Advisory Oracle↗🇺🇸CISA KEV (original)↗

Required action (CISA)i

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA descriptioni

Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in contain an improper access control vulnerability that can result in unauthorized creation, deletion or modification access to critical data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in accessible data.

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